and first lady michelle obama will be walking out as well. and here is more since 9/11 attacks and there is the president and first lady. >>> they will be coming out and in just a moment, 5:46 our time they will be observing a moment of silence around the world and in the bay area as well and that's the time that the first plane crashed american airlines plane hit the first tower and they are marking that moment which will be the beginning of the ceremony this morning. >> it is now 5:46, pam, that very moment... [ observing a moment of silence ] . >>> all right, we are observing the first lady and brock observing the moment of silence marking again the time that the first plane hit the tower 11 years ago today. we are watching live the ceremonies honoring the victims in washington d.c. also at ground zero, there is also a memorial at shanksville pennsylvania whereof course the flight bound for san francisco crashed in that field and including the pentagon as well, family members and political leaders at the pentagon will be reading the names